.van-nav-bar {
    background-color: #3196fa;
    .van-nav-bar__title {
        color: #ffffff;
    }
}
//撑满整个body

.layout {
    .van-nav-bar {
        width: 100%;
        .logo {
            background: url('../assets/logo.png') no-repeat ;
            background-size: cover;
            height:40px;
            width:100px
        }
        .van-button{
            width:100px;
            font-size: 15px;
            .van-button__icon {
                color: #fff;
            }
        }
    }
}
